Guatemala mirror (http://www.quicklynet.com/mageia) returns 404 since at least 2 weeks, making a lot of south american users not able to add any of the repos.
I had to remove it from /var/cache/urpmi/mirrors.cache and set as chosen another one to be able to add all the repos and get updates.
Also, taking just into account geographical location to select a mirror, at least for south america, doesn't work that good. Why ? because there are none cross-country ISP interconnection, so if I need to get to a central american ISP (from Colombia) I always have to go to the US and then go down again. There's no other way to do it. This happens with most countries, maybe Brazil, Chile and Argentina are the exception and maybe they're interconnected, but just between them.
So, for the rest of south american countries, US mirrors are best.
Quicklynet is already disabled in our list, so you have to contact them if you want them to fix it.
As I said, I prefer US mirrors, but until last night when I opened this bug I was still getting that mirror, even after deleting /var/cache/urpmi/mirrors.cache which is downloaded from the mirrors servers I suppose.
I'll test that again later.
Can this mirror be deleted from the mirror list ? is still invalid and each time I boot I have to delete it from /var/cache/urpmi/mirrors.cache to be able to get updates or install software.
Mirror is now disabled in mirrors database, and should now be removed from mirror list.